update test with proper filename
diff --git a/tests/test_x509.py b/tests/test_x509.py
index 7a4d0b7..be118bb 100644
--- a/tests/test_x509.py
+++ b/tests/test_x509.py
@@ -159,7 +159,7 @@
 class TestDSAX509Certificate(object):
     def test_load_dsa_cert(self, backend):
         cert = _load_cert(
-            os.path.join("x509", "custom", "dsa_root.pem"),
+            os.path.join("x509", "custom", "dsa_selfsigned_ca.pem"),
             x509.load_pem_x509_certificate,
             backend
         )